3
Art: 714258-00N Rev. Date: 22-May-12
Cartridges
Collection Options
Syringes Evacuated Tubes Capillary Tubes
Directly from
Skin Puncture
Cartridges
which
perform BNP
• WithEDTA
anticoagulant.
• Syringesmustbe
plastic.
• WithEDTA
anticoagulant.
• Tubesmustbe
plastic.
• Notrecommended • Notrecommended
All other
cartridges
• Withoutanticoagulant
• Withlithium,sodium,
or balanced heparin
anticoagulant
• Withoutanticoagulant
• Withlithiumorsodium
heparin anticoagulant
• Without
anticoagulant
• Withbalanced
heparin
anticoagulant
• Withsodiumor
lithium heparin
if labeled for the
measurement of
electrolytes
• Whileasample
can be transferred
directly from a
skin puncture
to a cartridge, a
capillary tube is
preferred.
• Not recommended
for blood gas
analysis; arterial
specimens are
preferred.
Note Regarding System
Reliability
The i-STAT System automatically runs a comprehensive set of quality checks of analyzer
and cartridge performance each time a sample is tested. This internal quality system will
suppress results if the analyzer or cartridge does not meet certain internal specifications
(see Quality Control section in System Manual for detailed information). To minimize the
probability of delivering a result with medically significant error the internal specifications
are very stringent. It is typical for the system to suppress a very small percentage of
results in normal operation given the stringency of these specifications. If however the
analyzer or cartridges have been compromised, results may be persistently suppressed,
and one or the other must be replaced to restore normal operating conditions. Where
unavailability of results while awaiting replacement of analyzers or cartridges is
unacceptable, i-STAT recommends maintaining both a backup i-STAT System
analyzer and cartridges from an alternate lot number.
EXPECTED VALUES
Measured:
TEST UNITS
REPORTABLE
RANGE
REFERENCE
RANGE
(arterial) (venous)
Sodium/Na
mmol/L(mEq/L) 100–180 138–146 138–146
Potassium/K
mmol/L(mEq/L) 2.0–9.0 3.5–4.9 3.5–4.9
Chloride/Cl
mmol/L(mEq/L) 65–140 98–109 98–109
Glucose/Glu
mmol/L
mg/dL
g/L
1.1–38.9
20–700
0.20–7.00
3.9–5.8
70–105
0.70–1.05
3.9–5.8
70–105
0.70–1.05
Lactate/Lac
mmol/L
mg/dL
0.30–20.00
2.7–180.2
0.36–1.25
3.2–11.3
0.90–1.70
8.1–15.3
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